Machine for applying lugs or the like to bobbins or the like

ABSTRACT

Machine for applying lugs or the like to plastic bobbins or the like when the bobbins include post means and the lugs include hole means matable with the post means and collapsible means coacting with the hole means to decrease the size of the hole means and lock the lug to the bobbin, and the machine includes means feeding lugs into alignment with bobbins at a lug-applying station, means severing lugs from a strip form of lugs, means applying the lugs to the bobbins, and means collapsing the lug collapsible means to secure the lug to the bobbin.

United States Patent 1 3,579,787 [72] Inventors Joseph J. Cervenka [5 6]References Cited 428 E. Crescent, Elmhurst, Ill. 60126; UNITED STATESPATENTS f 177 Rm, 1,579,875 4/1926 Lundberg 29/520 60546 2,177,19110/1939 Sandberg 29/520 [21] P 760,267 2,515,881 7/1950 Makenny 29/203[22] Sept- 1711968 3,425,119 2/1969 Holtfreter a 29/520 [451 Palm May1971 3,432,925 3/1969 Woolley 29/203 Primary Examiner-Thomas H. EagerAttorney-Kinzer, Dorn & Zickert ABSTRACT: Machine for a l in lu s or thelike to lastic [54] ggg g ggg OR THE LIKE bobbins or the like when thegbbi ns iiclude post meai is and he lu 5 include hole means matable withthe 0st means and 9 Claims, 21 Drawing Figs. t p

collapsible means coacting w1th the hole means to decrease [52] U.S. Cl29/203, the size of the hole means and lock the lug to the bobbin, and29/208 the machine includes means feeding lugs into alignment with [51]Int. Cl. H05k 13/04, bobbins at a lug-applying station, means severinglugs from at 823p 19/04 strip form of lugs, means applying the lugs tothe bobbins, and [50] Field of Search 3 means collapsing the lugcollapsible means to secure the lug to 29/20 208, 400, 520, 417, 208(D), 203 (DT); 198/19 the bobbin.

, PATENTED mwzsusn 3579.787

sum 1 u; 7

INVENTORS JOSEPH J. CERVENKA MARVlN E} HETZEL BY ?7 A TORNEYS PATENTEDwas ml 3 579-. 7 87 SHEET 2 or 7 INVENTOR JOSEPH J. CERVENKA MARVlN E.HETZEL BY 42?; dmud A TORNEYS PATENTED "M25 [97! SHEET 3 0F 7 INVENTORJOSEPH J. CERVENKA MARVIN E. HETZEL ATIORNEYS MGE INVENTOR JOSEPH J.CERVENKA MARVIN E. HETZEL 7 mum AT ORNEYS PATENTED M25 197i h, E x H1 gPATENTED W25 I97! SHEETSUF? F1 F1 8 l p INVENTOR JOSEPH J. CERVENKAMARVIN E. HETZEL flg ydmml AT 0 RNEYS PATENTED W25 l97| SHEET 8 0F 7INVENIUR JOSEPH J CERVENKA v MARVlN E. HETZEL. BY

AT 0 RNEYS MACHINE FOR APPLYING LUGS OR THE LIKE TO ROBBINS OR THE LIKEThis invention relates in general to a lug-applying machine, and moreparticularly to a machine for successively applying lugs or the like tosuccessive plastic bobbins or the like.

Heretofore, application of terminal lugs on plastic bobbins hasgenerally involved the use of a terminal lug with a serrated tang thatwould be received in an opening or socket formed in the plastic bobbin,wherein the opening or socket would be of a size slightly smaller thanthe tang, so that the tang would selflock in the opening. The plasticbobbins are employed in relays or solenoids with coil turns, wherein thelugs attached to the bobbins include tines that are used for attachingconductive wires thereto. The terminal lug and mounting arrangementheretofore employed has been objectionable, since the pull strength ofthe lugs relative the bobbins is insufficient and many times causesmalfunction by not maintaining a securely locked position on the bobbin.A terminal lug device that overcomes these difficulties is disclosed andclaimed in our copending application for Pat. Ser. No. 725,068 filedApr. 29, 1968, now US. Pat. No. 3,510,823.

The present invention deals with a machine for securing terminal lugs orthe like to plastic bobbins or the like, wherein the lugs include holesadjacent a raised and collapsible portion, and the bobbins include oneor more posts upstanding from a flat portion, as disclosed in ourcopending application. The machine includes a conveyor having pinsthereon for receiving bobbins and carrying the bobbins through alug-applying station. The conveyor is advanced step by step, and onefeature of the invention is the indexing mechanism employed foradvancing the conveyor. The machine is in the general fonn of a presshaving a punch plate slidable toward and away from a die holder. A punchmember is mounted on the die holder and actuated by the forward strokeof the punch plate to sever a lug from a strip form of lugs and mountthe lug onto the bobbin, and thereafter collapse the collapsible portionof the lug to lock same to the bobbin. The lug strip is fed into the lugby applying station, so that the endmost lug can be severed from thestrip from of lugs and applied to the bobbin at the lug-applyingstation. Feeding of the lug strip is coordinated with the indexing ofthe conveyor through the punch plate on its forward and return stroke.Thus, the method of applying the lugs to the bobbins includes the stepsof positioning a lug in alignment with a bobbin so that lug hole meanswill mate with the bobbin post means upon application of the lug to thebobbin, applying the lug to the bobbin, and collapsing the collapsibleportion to firmly secure the lug to the bobbin. Further, the methodincludes successively mounting lugs on successive bobbins wherein thebobbins are advanced through the lug-applying station by conveyor andthe lugs are severed from a strip form of lugs. While the presentinvention will be described as being applicable for applying lugs tobobbins, it should be appreciated that it is equally applicable forapplying fasteners to plastic bodies, as set forth in our copendingapplication.

Accordingly, it is an object of the present invention to provide amachine for applying lugs or the like to plastic bobbins or the like,wherein application is efficiently and quickly accomplished.

Another object of this invention is in the provision of a machine forsuccessively applying lugs to successive bobbins, wherein the lugs arefirmly secured to the bobbins and will not pull loose.

Other objects, features and advantages of the invention will be apparentfrom the following detailed disclosure, taken in conjunction with theaccompanying sheets of drawings, wherein like reference numerals referto like parts, in which:

FIG. I is a front elevational view of the lug-applying machine accordingto the present invention, with some parts omitted for purposes ofclarity, and showing the punch plate in the home position, as well asthe movable components mounted on the die holder;

FIG. 2 is a fragmentary side elevational view of the Iug-applyingmachine shown in FIG. I;

FIG. 3 is a side elevational view of the bobbin conveyor employed in themachine according to the present invention, and shown in'associationwith certain parts of the machine for purposes of clarity;

FIG. 4 is a top plan view of the conveyor drive and indexing mechanismaccording to the present invention;

FIG. 5 is a top plan view of the lug strip form feeders and a part ofthe bobbin conveyor;

FIG. 6 is a broken sectional view taken through the adjusting mechanismfor adjusting the position of the punch member to accommodate bobbins ofvarious sizes and taken generally along line 6-6 of FIG. 5;

FIG. 7 is a fragmentary detailed sectional view taken through theadjusting mechanism and illustrating the locking pin in extractedposition;

FIG. 8 is a plan view of a part of the movable frame for the punchholder to illustrate the locking notch, wherein the guide and lockingpin have been omitted;

FIG. 9 is an enlarged vertical view of the punch holder and the punchplate taken substantially along line 9-9 of FIG. 5;

FIG. 10 is an enlarged fragmentary view of a part of the bobbin conveyorand illustrating the manner in which bobbins are oriented along thetrack guide;

FIG. 11 is a transverse, fragmentary sectional view, somewhatdiagrammatic, of the track guides and illustrating the manner in which abobbin is oriented by the track guides and flange support;

FIG. 12 is a detailed, front elevational view of the punch holder as itis associated with the strip form of lugs; H

FIG. 13 is a view similar to FIG. 12 with the strip form of lugs omittedand a part of the punch holder broken away to illustrate the collapsingblade on the punch holder; p

FIGS. 14 to 17 are somewhat diagrammatic views of the die holder andpunch holder illustrating the steps of severing a lug from the stripform of lugs, applying the lug onto the bobbin, so that the post meansmates with the hole means, and collapsing of the lug to lock same to thebobbin;

FIG. 18 is a perspective view of a part of a strip form of lugsillustrating one type thatmay be applied with the machine and method ofthe present invention;

FIG. 19 is an enlarged fragmentary view of a bobbinand a lug inperspective to further illustrate the application of a lug to thebobbin;

FIG. 20 is a top plan view of a bobbin having a lug applied thereto; and

FIG. 21 is a sectional view taken through the bobbin flange and lugsubstantially along line 2I-2l of FIG. 20.

Referring now to the drawings, and particularly to FIGS. 1 and 2, anillustrated embodiment of the present invention-includes a base or frame24 adapted to mount the machine onto a flat surface or table 25; Themachine is in the form of 'a press and includes generally a die holder26 supported on the base and coacting with a punch plate 27, that ismounted onaa punch head slide 28 for reciprocal movement toward and awayfrom the die holder. Thus, the die holder is stationary or fixedrelative the base 24.

The punch head slide 28 is slidable in gibs 29. The punch head slide 28is reciprocally driven by a crank 30 connected thereto and extendingupwardly to be connected onto a crank arm 31. A crankshaft (not shown)is connected to the crank 31 and to a suitable fly wheel (not shown)that is drivingly connected to a suitable motor (not shown). Themotorwould continuously drive the fly wheel, and a clutch would beprovided for selectively connecting the crankshaft to the fly wheel todrive the crank through a single revolution that would include a forwardor downward and return or upward strokes. The clutch would be operatedby a suitable relay or solenoid through a control actuated by theoperator. Operation of the machine responds to the cycling of thecrankshaft when driving the punch head slide and punch plate through aforward and a return stroke.

Mounted on a die holder are a bobbin conveyor 32, a pair of lug stripform feeders 33, and a pair of punch holders 34. The

bobbin conveyor 32 carries the bobbins to the lug-applying station,while the lug feeders 33 feed lugs into alignment with the bobbin at thelug-applying station. Punch holders 34 orient the lug at thelug-applying station, sever the endmost lugs from the strip, hold thebobbin in lug-applying position, mount the severed lugs onto the bobbin,and collapse the collapsible portion of the lugs to lock the lugs ontothe bobbin. The punch holders are actuated by the punch plate 27.Further, the lug feeders are actuated by the punch plate 27 and theindexing of the bobbin conveyor is actuated in response to the cyclingof the punch plate.

In order to better understand the operation of the machine, reference ismade to FIGS. 18 to 21, which show in detail the strip form of lugs andthe bobbin construction. As seen particularly in FIG. 18, the strip formof lugs 35 that is fed to the lug-applying station by the lug feeders 33includes a plurality of lugs 36 arranged in side-by-side relation andinterconnected by connecting portions 37. When severing a lug 36 fromthe strip form, the connecting portions 37 are actually cut away tothereby leave a lug 36, as shown in FIGS. 19 and 20. Each lug 36includes a flat base 38 having hold means therein in the form of a pairof holes 39 and a raised or collapsible portion 40 struck between theholes and coacting therewith, so that upon collapsing of the collapsibleportion, the holes 39 are decreased in size. Tines 41 are provided asextending from the flat base 38 for the purpose of connecting conductivewires to the lug.

A bobbin of the type adapted to receive a lug 36 is generally designatedby the numeral 42 and includes a central body 43 of generallyrectangular, cross-sectional shape, and end flanges 44. It can beappreciated that wire is wound about the body 43 between the end flanges44 to define a coil for the solenoid or relay. The outer surface 45 ofthe end flanges is flat and extends nonnal to the axis of the body 43.Upstanding post means in the form of a pair of cylindrical posts 46 areformed on the outer surface 45 of the end flanges at each end of the endflanges, so that a lug may be applied at one or both ends of each endflange. Upstanding ribs 47 are formed on the outer surface 45 of the endflanges and which facilitate the fixing of the bobbin at thelug-applying station during the lug-applying operation, as will be moreclearly explained hereinafter. The core of the body 43 is open or hollowat 48 to facilitate the mounting of the bobbins on the bobbin conveyor32.

As seen inFlG. 19, the holes 39 of each lug 36 must be aligned with theposts 46 of a bobbin 42 in a precise manner before application of thelugs onto the bobbins. When the lug is mounted on the bobbin where theposts mate with the holes, the collapsible portion 40 is collapsed,whereby the edges 39a of the holes bite into the posts 46, as seenparticularly in FIG. 21 to lock the lug to the bobbin. Since the bobbinis of plastic, and the lugs would be of a relatively soft material,deformation of the lugs and bobbin can readily be appreciated to obtainthe necessary locking relationship therebetween. The machine of thepresent invention is adapted to mount simultaneously a lug on each endof an end flange, but it should be appreciated that the machine could bereadily adapted to mount only a desired lug on an end flange of abobbin, if so desired.

The bobbin conveyor 32, FIG. 3, includes a loading end 49 and adischarge end 50, wherein bobbins are loaded on the conveyor at theloading end, advanced step by step through the lug-applying station anddischarged from the conveyor at the discharge end 50 into a chute 51that leads to a receptacle or container. An upstanding deflector 51a isprovided adjacent the discharge end 50 of the bobbin conveyor to deflectthe gravitationally discharged bobbins into the chute 51. The conveyorincludes an endless chain 52 trained about an idler sprocket 53 at theloading end and a driving sprocket 54 at the discharge end. A pluralityof spaced pins 55 are mounted on the chain 52 for receiving the bobbins.As seen in FIG. 10, an enlarged portion at the base of each pin definesa shoulder 56 against which the bobbin bottoms when it is inserted onthe pin. The bobbin insertion station is designated at 57, and at thispoint the bobbin is loosely held on the pin 55. As the bobbin isadvanced step by step by. the conveyor into the lug-applying station, itis driven between opposed tracks 58, FIG. 11, that have opposed, guidingfaces including flange guiding faces 59 and flange support faces 60. Theflange guiding faces 59 are essentially vertical and serve to positionthe bobbin precisely along the conveyor path, so that the posts on theend flanges are precisely located for application of the lugs. Theshoulders 60 support the upper flange of each bobbin and provide abottom limit position when the punch holder is actuated. A holddownmember is provided on the punch holder to engage the top of the bobbinand hold it down against the shoulder 60 when the bobbin is in thelug-applying station. The tracks 58 only extend in the area of thelug-applying station, as following application of the lugs, it is nolonger necessary to maintain the bobbins in a precise position. Onceagain the bobbins are freely received on the pins, so that they fall offby gravity at the discharge end of the conveyor when the chain carriermoves toward the underside of the drive sprocket 54.

The forward idler sprocket 53 is rotatably mounted on a shaft 61 that issuitably supported in brackets 62 that extend from the die holder 26;The driving sprocket 54 is mounted on a shaft 63 rotatable in a frameextension 64 that extends from the base 24.

The indexing mechanism which effects the step by-step movement of theconveyor includes a fluid coupling 65 mounted on the shaft and havingits output connected to the shaft 65 and its input connected to a pulley66 that is rotatably mounted on the shaft 63. Power is applied to thepulley 66 through an endless belt 67 that is also trained about a pulley68 on a motor 69. The motor 69 runs continuously during the operation ofthe conveyor to impart power to the fluid coupling 65. An indexing wheel70, FIGS. 3 and 4, is mounted on the shaft 63, and provided with stoppins 71 and 72 on opposite sides thereof for coaction with stops 73 and74, respectively, carried on an indexing slide 75. The stop pins 71 and72 are circumferentially arranged and staggered relative each other. Theindexing slide 75 is slidably mounted in a slide mounting or block 76,and is drivingly connected to a piston rod 77 of an air cylinder 78 thatis mounted on a support plate 79. The support plate 79 is in turnmounted on the table 25. While the air cylinder 78 is illustrated forreciprocating the indexing slide 75 and moving it between first andsecond position, it should be appreciated that any other type of drivemeans may be provided to effect the reciprocal movement of the indexingslide. When the indexing slide 75 is in the position shown in FIG. 4,the stop 74 blocks the pins 72, while movement of the indexing slide tothe other position releases the pins 72 and causes the stop 73 to blockthe pins 71. Since the pins are in staggered positions, movement of theindexing slide between its first and second positions will permitadvancing of the conveyor one step at a time. The constant power beingapplied to the shaft 63 by the fluid coupling 65 effects advancing ofthe conveyor 32 during the reciprocal movement of the indexing slide 75.

The operation of the air cylinder 78 is controlled by a threewaysolenoid valve 80 having an inlet 81 and outlets 82 and 83, the latterof which lead to the opposite ends of the air cylinder 78. The inlet 81is connected to a suitable source of air pressure. Dumps 84 and 85 areprovided respectively for the air supply lines 82 and 83. The solenoidcontrol valve 80 is operated by an indexing switch 86 mounted foractuation by the crank arm 30 at the end of the upward or return strokeof the punch plate 27 to effect advancing of the conveyor after thepunch holder 34 has cleared the lug-applying station. A second switch87, FIG. 4, is actuated by the indexing slide 75 to condition thesolenoid valve to cause movement of the slide in one direction when theslide 75 is in the position shown in FIG. 4, whereby closing of theswitch 86 effects movement of the indexing slide to cause the stop 73 tomove into the path of the stop pin 71, while the stop 74 is moved out ofthe path of the stop pins 72.

Thus, the indexing mechanism for the conveyor is actuated on the returnstroke of the punch plate 27 to bring the next bobbin into thelug-applying station.

At the lug-applicating station, the opposed lug feeders 33 are arrangedto feed the lug strip to the cutoff and applying position instep-by-step fashion and in coordination with the indexing of the bobbinconveyor 32. Thus, the lug strip 35 is fed through a strip positioningtrack 88 intermittently by a conventionally air operated feed unit Thestrip is advanced upon the return or upward stroke of the punch plate 27following the clearance of the punch holder 34 of the lug applicatingand cutting area. Each lug feeder includes a strip holdback unit 89 thatprevents the strip from backing up through the track 88 once it has beenadvanced. A stripfeed clamp 90 effects the clamping and advancing of thestrip. A feed actuator 91 is operated by movement of the punch plate 27through a spring-loaded plunger 92 mounted on the punch plate Thespring-loaded plunger 92 effects delayed action of the lug feeder by notoperating the'feed actuator 91 to advance the lug strip until the punchholder has cleared the lug strip feeding area. In operation, initialdownward movement of the punch plate 27 causes the spring-loaded plunger92 to actuate the feed actuators 91 to the down position and causerelease of the grippers 90 and retraction thereof to the back position.Since the grippers 90 are released, some freedom of movement of thestrip is permitted so that a pilot pin 93, FIGS. 9, l2 and 13, canprecisely locate the lug strip 35 for the strip cutting and mountingoperations. Near the end of the upward or return stroke of the punchplate 27, the spring-loaded plunger 92 will allow upward movement of thefeed actuators 91, which causes the lug feeders to grip and advance thelug strip one step and bring the succeeding endmost lugs into the lugapplicating station. Thus, the functioning of the lug feeders iscoordinated with the operation of the punch holder as determined bymovement of the punch plate 27. The lug strips are fed at right anglesto the bobbin conveyor 32, and it should be appreciated that one or bothof the lug feeders may be operated at any one time.

To enable the machine of the invention to handle bobbins of varioussizes, the lug feeders 33 and the punch holders 34 are adjustablymovable together toward or away from the bobbin conveyor 32. As seenparticularly in FIGS. 5 to 8, the lug feeders and punch holders areadjustably mounted for slidable movement along gibs 93 and 94. A notch95 is provided in a flange on the base for the lug feeders and punchholders for coaction with slots 96 and a locking pin 97 on the gib 93.Alignment of the notch 95 in the base with any of the slots 96 in thegib 93 and insertion of the locking pin 97 locks the lug feeders andpunch holders in a predetermined position relative to the bobbinconveyor 32. It can be readily appreciated that the entire feed andapplicating units may be movable quickly and easily to accommodatebobbin size variation.

Each punch holder 34 includes a movable block 98 that is verticallymovable relative the die holder 26 on vertical guide bars 99. Springs100 are provided between the movable block 98 and the die holder tonormally bias the block into its upper position as shown in FIGS. I and9. The pilot pin 93 is mounted on the movable block 98 and movestherewith to coact with one of the holes 39 of a lug in the lug stripfor precisely positioning the lug strip, so that the endmost lug is inregistry with the bobbin at the lug-applying station.

In order to assure the proper locating of a bobbin at the lugapplyingstation, a bobbin locator 101 is provided on each punch holder thatfirst comes down and locates the bobbin so that the posts are inregistry with the lug holes and holds the bobbin against the flangesupport faces 60 of the tracks 58. With registry assured in mounting thelug on the bobbin, the endmost lug can then be severed or cut from thelug strip, and a cutter bar 102, FIG. 13, on the punch holder movableblock 98 coacts with a fixed cutter bar on the die holder 26 to severthe lug from the strip. The cutter also then serves to mount the lugonto the bobbin. The lower end of the cutter bar 102 is provided with arecess for receiving the raised portion 40 of the lug. Arranged withinthe recess is a collapsing tool 103 that is mounted in a vertical borein the movable block and actuated by the punch plate 27 after the lughas been applied to the bobbin. As seen in FIG. 13, the upper end of thecollapsing tool 103 includes a head 104 that protrudes above the uppersurface 98a of the movable block 98 of the punch holder. The head 104 ofthe collapsing blade or tool 103 is engaged by delayed action by thepunch plate 27, which first engages a driving spring 105 mounted on thetop of the movable block 98 and normally extended to the position wellabove the collapsing tool head 104. Thus, initial downward movement ofthe punch plate causes engagement of the punch plate with the springs105 of the punch holders to initially drive the punch holdersdownwardly. In the initial downward movement, the pilot pin 93 orientsthe lug strip 35 the cutter I02 severs the endmost lug from the lugstrip and initiates moving same downwardly onto the bobbin, and thebobbin locator 101 engages the bobbin to precisely locate it forapplication of the lug. When the punch holder has bottomed on the dieholder, further downward movement of the punch plate 27 causescollapsing of the spring 105 until the punch plate engages thecollapsing blade head 104 and drives it downwardly to collapse thecollapsible portion 40 of the lug and lock the lug to the bobbin. Thesteps of the operation are illustrated in FIGS. 14 to 17, wherein thepunch holder 34 is shown in the upper home position in FIG. 14, whilethe endmost lug of the lug strip 35 is shown in general alignment withthe bobbin 42 at the lug-applying station. FIG. 15 illustrates initialdownward movement of the punch holder 34 and the enveloping of the lugby the recess 106 to prevent improper movement of the lug. The cutter102 is shown in cutting position relative to the cutter bar member 102a.Note that the collapsing tool 103 is in the raised position. FIG. 15shows the cutter bar 102 as having cut the endmost lug from the lugstrip and as having applied the lug to the bobbin 42. The collapsingblade 103 is shown in its down position in FIG. 17 after havingcollapsed the collapsible portion 40 of the lug to lock the lug to thebobbin. As the punch holder retracts to its rest position uponretraction of the punch plate to its home position, and following theclearance of the punch holder from the cutting and applying area in thelug-applying station, the gripper on the lug feeder again grips the lugstrip and advances same so that the next endmost lug is in lug-applyingposition. Thus, in rest position, the gripper of the lug feeder is inthe advanced position and is gripping the lug strip. Sufficient springforce is provided in the spring-loaded plungers 92 to overcome thespring return force of the feed actuators 91 and maintain the feedactuators in down position until the punch plate 27 has returned to aposition to allow the punch holder to clear the strip before it isadvanced.

It will be understood that modifications and variations may be effectedwithout departing from the scope of the novel concepts of the presentinvention, but it is understood that this application is to be limitedonly by the scope of the appended claims. The invention is herebyclaimed as follows:

We claim:

1. Apparatus for applying lugs to bobbins wherein the bobbins areprovided with aflat surface and post means upstanding therefrom and eachlug includes hole means matable with the post means and collapsiblemeans coacting with the hole means and adapted to be collapsed followingmounting of a lug on a bobbin to lock same to the post means thereof,said apparatus comprising a conveyor for supporting the bobbins andcarrying same through a lug-applicating station, means for indexing saidconveyor into and through said lug-applicating station, means forfeeding lugs to the lug-applicating station, means for orienting thebobbin and lug in the lug-applicating station, means for applying a lugto the bobbin in the lug-applicating station, and means for collapsingthe collapsible means of the lug in the lug-applicating station after ithas been applied to the bobbin to lock the lug to the bobbin.

2. A machine for successively applying lugs onto successive bobbinswherein the lugs include hole means and a collapsible portion coactingwith the hole means to decrease the size of the hole means upon beingcollapsed and said bobbins having post means for mating with the holemeans wherein following application of a lug to a bobbin, collapsing ofthe collapsible portion locks the lug to the bobbin, said machinecomprising, a crankshaft having a crank, a slidably mounted slide blockin coupled engagement with said crank, means for cycling said crankshaftthrough one revolution for driving said slide block through a forwardstroke and a return stroke, a die set including a punch plate and a dieholder, means mounting said punch plate on said slide block to movetherewith through a forward stroke and a return stroke, a conveyor forreceiving a plurality of bobbins having a loading end and a dischargeend for indexing a bobbin through a lug-applying station, meansorienting the bobbins at the lug-applying station, means on said dieholder for supporting a strip form of lugs and for feed ing the endmostlug into the lug-applying station in alignment with said bobbin, meanson said die holder operable by said punch plate on the forward strokefor severing the endmost lug from the chain form of lugs and applyingsame to the bobbin, means on the die holder operable by said punch plateto collapse the lug collapsible portion during the forward stroke, andmeans operable upon the return stroke of the punch plate for indexingthe bobbin conveyor and for feeding the chain form of lugs so that thenext endmost lug is aligned with the next bobbin at the lug-applyingstation.

3. A machine as defined in claim 2, wherein said means on the die holderoperable by the punch plate for severing the endmost lug, applying sameto a bobbin and collapsing the collapsible portion includes a verticallymovable punch holder having a cutter for cutting lugs from the stripform, an applicating head for guiding movement of the lug onto thebobbin, and a collapsing blade for engaging and collapsing the lugcollapsible portion.

4. A machine as defined in claim 3, wherein a driving spring is mountedon the upper surface of the punch member and first engageable by thepunch plate to drive the punch holder downward and efiect cutting of alug from the strip form and application of a lug to a bobbin, and acollapsing blade head protruding from the upper surface of the punchholder and engageable with said punch plate after collapse of thedriving spring and when the punch holder has bottomed by application ofthe lug to the bobbin.

5. A machine as defined in claim 4, wherein a bobbin holddown member ismounted on the punch holder for engaging, orienting and holding thebobbin during application of the lug and collapsing of the collapsibleportion.

6. A machine as defined in claim 5, and a pilot pin on said punch holderfor coacting with the strip form to precisely locate same for thecutting and applying of the endmost lug.

7. A machine as defined in claim 2, wherein said means for indexing saidbobbin conveyor includes a fluid coupling having its output drivinglyconnected to said conveyor and its input drivingly connected to a powersource, an indexing wheel connected to said conveyor pin means on saidindexing wheel, a slide having stops for the pin means and movablebetween first and second positions whereby moving alternately betweensaid positions allows the power source through the fluid coupling tointermittently drive and index the conveyor, and means for driving saidslide between said positions responsive to the return stroke of thepunch plate.

8. A machine as defined in claim 2, wherein said means operable upon thereturn stroke of the punch plate delays operation of said plug stripfeed means until the punch holder has cleared the lug cutting area.

9. A machine as defined in claim 8, wherein said strip feed meansincludes an actuator and said punch plate includes a spring mountedplunger for operating said actuator.

1. Apparatus for applying lugs to bobbins wherein the bobbins areprovided with a flat surface and post means upstanding therefrom andeach lug includes hole means matable with the post means and collapsiblemeans coacting with the hole means and adapted to be collapsed followingmounting of a lug on a bobbin to lock same to the post means thereof,said apparatus comprising a conveyor for supporting the bobbins andcarrying same through a lug-applicating station, means for indexing saidconveyor into and through said lug-applicating station, means forfeeding lugs to the lug-applicating station, means for orienting thebobbin and lug in the lug-applicating station, means for applying a lugto the bobbin in the lug-applicating station, and means for collapsingthe collapsible means of the lug in the lugapplicating station after ithas been applied to the bobbin to lock the lug to the bobbin.
 2. Amachine for successively applying lugs onto successive bobbins whereinthe lugs include hole means and a collapsible portion coacting with thehole means to decrease the size of the hole means upon being collapsedand said bobbins having post means for mating with the hole meanswherein following application of a lug to a bobbin, collapsing of thecollapsible portion locks the lug to the bobbin, said machinecomprising, a crankshaft having a crank, a slidably mounted slide blockin coupled engagement with said crank, means for cycling said crankshaftthrough one revolution for driving said slide block through a forwardstroke and a return stroke, a die set including a punch plate and a dieholder, means mounting said punch plate on said slide block to movetherewith through a forward stroke and a return stroke, a conveyor forreceiving a plurality of bobbins having a loading end and a dischargeend for indexing a bobbin through a lug-applying station, meansorienting the bobbins at the lug-applying station, means on said dieholder for supporting a strip form of lugs and for feeding the endmostlug into the lug-applying station in alignment with said bobbin, meanson said die holder operable by said punch plate on the forward strokefor severing the endmost lug from the chain form of lugs and applyingsame to the bobbin, means on the die holder operable by said punch plateto collapse the lug collapsible portion during the forward stroke, andmeans operable upon the return stroke of the punch plate for indexingthe bobbin conveyor and for feeding the chain form of lugs so that thenext endmost lug is aligned with the next bobbin at the lug-applyingstation.
 3. A machine as defined in claim 2, wherein said means on thedie holder operable by the punch plate for severing the endmost lug,applying same to a bobbin and collapsing the collapsible portionincludes a vertically movable punch holder having a cutter for cuttinglugs from the strip form, an applicating head for guiding movement ofthe lug onto the bobbin, and a collapsing blade for engaging andcollapsing the lug collapsible portion.
 4. A machine as defined in claim3, wherein a driving spring is mounted on the upper surface of the punchmember and first engageable by the punch plate to drive the punch holderdownward and effect cutting of a lug from the strip form and applicationof a lug to a bobbin, and a collapsing blade head protruding from theupper surface of the punch holder and engageable with said punch plateafter collapse of the driving spring and when the punch holder hasbottomed by application of the lug to the bobbin.
 5. A machine asdefined in claim 4, wherein a bobbin holddown member is mounted on thepunch holder for engaging, orienting and holding the bobbin duringapplication of the lug and collapsing of the collapsible portion.
 6. Amachine as defined in claim 5, and a pilot pin on said punch holder forcoacting with the strip form to precisely locate same for the cuttingand applying of the endmost lug.
 7. A machine as defined in claim 2,wherein said means for indexing said bobbin conveyor includes a fluidcoupling having its output drivingly connected to said conveyor and itsinput drivingly connected to a power source, an indexing wheel connectedto said conveyor pin means on said indexing wheel, a slide having stopsfor the pin means and movable between first and second positions wherebymoving alternately between said positions allows the power sourcethrough the fluid coupling to intermittently drive and index theconveyor, and means for driving said slide between said positionsresponsive to the return stroke of the punch plate.
 8. A machine asdefined in claim 2, wherein said means operable upon the return strokeof the punch plate delays operation of said plug strip feed means untilthe punch holder has cleared the lug cutting area.
 9. A machine asdefined in claim 8, wherein said strip feed means includes an actuatorand said punch plate includes a spring mounted plunger for operatingsaid actuator.